From akrherz at iastate.edu  Tue Sep  1 11:01:03 2009
From: akrherz at iastate.edu (daryl herzmann)
Date: Tue, 1 Sep 2009 11:01:03 -0500
Subject: IEM Daily Bulletin
Message-ID: <200909011601.n81G13vK008373@despam-11.iastate.edu>


Iowa Environmental Mesonet Daily Bulletin for 01 September 2009

> News

    No news is good news

> Daily Feature

 +----------------------------------------------
http://mesonet.agron.iastate.edu/onsite/features/cat.php?day=2009-08-31
 | Title : A bit early for cold
 | Date  : 31 Aug 06:06 AM
 | Votes : Good: 16   Bad: 3
 +----------------------------------------------

Low temperatures this weekend were in the 40s and even upper 30s in some locations.  The featured chart shows the frequency of experiencing a given threshold temperature by a certain date in the fall for Ames.  While having a low temperature in the upper 40s by now is common, the 30s are a few weeks away.

> NWS Watch/Warning Summary for 31 Aug 2009

             Summary +_________ By WFO ____________+  Watches 
Type         US   IA | ARX   DVN   DMX   OAX   FSD |  US 
Tornado       0    0 |   0     0     0     0     0 |   0
Svr Tstorm   11    0 |   0     0     0     0     0 |   0
Fl Flood      3    0 |   0     0     0     0     0 | N/A

ARX = LaCrosse, WI  DVN = Davenport, IA    DMX = Des Moines, IA 
OAX = Omaha, NE     FSD = Sioux Falls, SD

> IEM Cow Report
SVR+TOR Warnings Issued: 11 Verified: 4  [36.4 %]
Reduction of Size Versus County Based     [78.8 %]
Average Perimeter Ratio                   [11.7 %]
Percentage of Warned Area Verified (15km) [15.6 %]
Average Storm Based Warning Size          [1018 sq km]
Probability of Detection(higher is better)[0.71]
False Alarm Ratio (lower is better)       [0.64]
Critical Success Index (higher is better) [0.32]

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From akrherz at iastate.edu  Wed Sep  2 11:01:02 2009
From: akrherz at iastate.edu (daryl herzmann)
Date: Wed, 2 Sep 2009 11:01:02 -0500
Subject: IEM Daily Bulletin
Message-ID: <200909021601.n82G12mo031730@despam-11.iastate.edu>


Iowa Environmental Mesonet Daily Bulletin for 02 September 2009

> News

    No news is good news

> Daily Feature

 +----------------------------------------------
http://mesonet.agron.iastate.edu/onsite/features/cat.php?day=2009-09-01
 | Title : Cool August
 | Date  : 01 Sep 06:00 AM
 | Votes : Good: 21   Bad: 6
 +----------------------------------------------

The featured chart shows that there were not many warm days for Cedar Rapids during August, much like <a href="http://mesonet.agron.iastate.edu/onsite/features/cat.php?day=2009-08-05">July</a>. With only one day above the 50th percentile for high and just one day over the 25th for the last 2 weeks makes one to forget what the term "dog days of summer" means.  Some warming is expected to start September, but highs are just in the lower 70s.

> NWS Watch/Warning Summary for 01 Sep 2009

             Summary +_________ By WFO ____________+  Watches 
Type         US   IA | ARX   DVN   DMX   OAX   FSD |  US 
Tornado       0    0 |   0     0     0     0     0 |   0
Svr Tstorm    1    0 |   0     0     0     0     0 |   0
Fl Flood      1    0 |   0     0     0     0     0 | N/A

ARX = LaCrosse, WI  DVN = Davenport, IA    DMX = Des Moines, IA 
OAX = Omaha, NE     FSD = Sioux Falls, SD

> IEM Cow Report
SVR+TOR Warnings Issued: 1 Verified: 0  [0.0 %]
Reduction of Size Versus County Based     [94.6 %]
Average Perimeter Ratio                   [0.0 %]
Percentage of Warned Area Verified (15km) [0.0 %]
Average Storm Based Warning Size          [595 sq km]
Probability of Detection(higher is better)[0.00]
False Alarm Ratio (lower is better)       [1.00]
Critical Success Index (higher is better) [0.00]

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From akrherz at iastate.edu  Thu Sep  3 11:01:03 2009
From: akrherz at iastate.edu (daryl herzmann)
Date: Thu, 3 Sep 2009 11:01:03 -0500
Subject: IEM Daily Bulletin
Message-ID: <200909031601.n83G13Rn026817@despam-11.iastate.edu>


Iowa Environmental Mesonet Daily Bulletin for 03 September 2009

> News

    No news is good news

> Daily Feature

 +----------------------------------------------
http://mesonet.agron.iastate.edu/onsite/features/cat.php?day=2009-09-02
 | Title : Few and far between
 | Date  : 02 Sep 06:06 AM
 | Votes : Good: 17   Bad: 5
 +----------------------------------------------

The featured image presents the daily number of severe thunderstorm and tornado warnings issued in Iowa for the past two months.  The cool weather has certainly put a damper on severe weather this summer as thunderstorms like to have hot and steamy air to work with. Some severe weather will be possible just to our west today in Nebraska with large hail being the main threat.

> NWS Watch/Warning Summary for 02 Sep 2009

             Summary +_________ By WFO ____________+  Watches 
Type         US   IA | ARX   DVN   DMX   OAX   FSD |  US 
Tornado       5    0 |   0     0     0     0     2 |   0
Svr Tstorm    7    0 |   0     0     0     0     0 |   0
Fl Flood      6    0 |   0     0     0     0     1 | N/A

ARX = LaCrosse, WI  DVN = Davenport, IA    DMX = Des Moines, IA 
OAX = Omaha, NE     FSD = Sioux Falls, SD

> IEM Cow Report
SVR+TOR Warnings Issued: 12 Verified: 4  [33.3 %]
Reduction of Size Versus County Based     [85.6 %]
Average Perimeter Ratio                   [17.7 %]
Percentage of Warned Area Verified (15km) [16.9 %]
Average Storm Based Warning Size          [1330 sq km]
Probability of Detection(higher is better)[0.56]
False Alarm Ratio (lower is better)       [0.67]
Critical Success Index (higher is better) [0.26]

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From akrherz at iastate.edu  Fri Sep  4 11:01:04 2009
From: akrherz at iastate.edu (daryl herzmann)
Date: Fri, 4 Sep 2009 11:01:04 -0500
Subject: IEM Daily Bulletin
Message-ID: <200909041601.n84G14dL027067@despam-11.iastate.edu>


Iowa Environmental Mesonet Daily Bulletin for 04 September 2009

> News

    No news is good news

> Daily Feature

 +----------------------------------------------
http://mesonet.agron.iastate.edu/onsite/features/cat.php?day=2009-09-03
 | Title : 70s and 40s
 | Date  : 03 Sep 06:07 AM
 | Votes : Good: 21   Bad: 5
 +----------------------------------------------

The featured chart showing temperatures observed at Ames for the past 7 days shows that having highs in the lower 70s and lows in the 40s are well below average. We should be in the lower 80s and upper 50s! Some warming is expected for the rest of this week, but highs will only be in the upper 70s.  We just have to take what we get.

> NWS Watch/Warning Summary for 03 Sep 2009

             Summary +_________ By WFO ____________+  Watches 
Type         US   IA | ARX   DVN   DMX   OAX   FSD |  US 
Tornado       1    0 |   0     0     0     0     0 |   0
Svr Tstorm   62    0 |   0     0     0     0     0 |   1
Fl Flood      6    0 |   0     0     0     0     0 | N/A

ARX = LaCrosse, WI  DVN = Davenport, IA    DMX = Des Moines, IA 
OAX = Omaha, NE     FSD = Sioux Falls, SD

> IEM Cow Report
SVR+TOR Warnings Issued: 63 Verified: 35  [55.6 %]
Reduction of Size Versus County Based     [72.4 %]
Average Perimeter Ratio                   [29.2 %]
Percentage of Warned Area Verified (15km) [24.8 %]
Average Storm Based Warning Size          [1418 sq km]
Probability of Detection(higher is better)[0.87]
False Alarm Ratio (lower is better)       [0.44]
Critical Success Index (higher is better) [0.51]

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From akrherz at iastate.edu  Sat Sep  5 11:01:03 2009
From: akrherz at iastate.edu (daryl herzmann)
Date: Sat, 5 Sep 2009 11:01:03 -0500
Subject: IEM Daily Bulletin
Message-ID: <200909051601.n85G130c028613@despam-10.iastate.edu>


Iowa Environmental Mesonet Daily Bulletin for 05 September 2009

> News

    No news is good news

> Daily Feature

 +----------------------------------------------
http://mesonet.agron.iastate.edu/onsite/features/cat.php?day=2009-09-04
 | Title : Mission Impossible
 | Date  : 04 Sep 06:00 AM
 | Votes : Good: 18   Bad: 4
 +----------------------------------------------

Growing Degree Day departures for this year since 1 May are running roughly 400 units below average.  The feature chart attempts to answer the question if this departure can be made up during the days remaining this month.  The red line would represent the accumulated departure if every day for the rest of this month tied a record high temperature for the day (maximum GDD accumulated).  Even with record warmth, we would not make up the difference.  The actual forecast does have warmer weather, but nothing record breaking!

> NWS Watch/Warning Summary for 04 Sep 2009

             Summary +_________ By WFO ____________+  Watches 
Type         US   IA | ARX   DVN   DMX   OAX   FSD |  US 
Tornado       0    0 |   0     0     0     0     0 |   0
Svr Tstorm   18    0 |   0     0     0     0     0 |   0
Fl Flood     16    0 |   0     0     0     0     0 | N/A

ARX = LaCrosse, WI  DVN = Davenport, IA    DMX = Des Moines, IA 
OAX = Omaha, NE     FSD = Sioux Falls, SD

> IEM Cow Report
SVR+TOR Warnings Issued: 18 Verified: 1  [5.6 %]
Reduction of Size Versus County Based     [95.1 %]
Average Perimeter Ratio                   [7.7 %]
Percentage of Warned Area Verified (15km) [3.7 %]
Average Storm Based Warning Size          [958 sq km]
Probability of Detection(higher is better)[0.50]
False Alarm Ratio (lower is better)       [0.94]
Critical Success Index (higher is better) [0.05]

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From akrherz at iastate.edu  Sun Sep  6 11:01:03 2009
From: akrherz at iastate.edu (daryl herzmann)
Date: Sun, 6 Sep 2009 11:01:03 -0500
Subject: IEM Daily Bulletin
Message-ID: <200909061601.n86G13xU025158@despam-10.iastate.edu>


Iowa Environmental Mesonet Daily Bulletin for 06 September 2009

> News

    No news is good news

> Daily Feature

 +----------------------------------------------
http://mesonet.agron.iastate.edu/onsite/features/cat.php?day=2009-09-05
 | Title : First Freeze and Full Moons
 | Date  : 05 Sep 11:22 AM
 | Votes : Good: 7   Bad: 2
 +----------------------------------------------

It is commonly said that the first fall season freeze occurs during a full moon in late September or October.  The featured plot shows that this simply is not the case in Iowa. The horizontal axis contains the number of days from the nearest full moon and the vertical axis is the number of days that observation was from the 6th of October (the median first freeze date).  The contours indicate the relative frequency of the data.  The important portion of the plot is the histogram in red at the top of the page clearly showing no full moon date dependence. Here is an <a href="http://mesonet.agron.iastate.edu/onsite/features/2009/09/first_s32_moon.xls">Excel file</a> with this data.

> NWS Watch/Warning Summary for 05 Sep 2009

             Summary +_________ By WFO ____________+  Watches 
Type         US   IA | ARX   DVN   DMX   OAX   FSD |  US 
Tornado       0    0 |   0     0     0     0     0 |   0
Svr Tstorm   19    0 |   0     0     0     0     0 |   0
Fl Flood     27    0 |   0     0     0     0     0 | N/A

ARX = LaCrosse, WI  DVN = Davenport, IA    DMX = Des Moines, IA 
OAX = Omaha, NE     FSD = Sioux Falls, SD

> IEM Cow Report
SVR+TOR Warnings Issued: 19 Verified: 4  [21.1 %]
Reduction of Size Versus County Based     [97.1 %]
Average Perimeter Ratio                   [8.8 %]
Percentage of Warned Area Verified (15km) [10.1 %]
Average Storm Based Warning Size          [878 sq km]
Probability of Detection(higher is better)[0.75]
False Alarm Ratio (lower is better)       [0.79]
Critical Success Index (higher is better) [0.20]

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From akrherz at iastate.edu  Mon Sep  7 11:01:04 2009
From: akrherz at iastate.edu (daryl herzmann)
Date: Mon, 7 Sep 2009 11:01:04 -0500
Subject: IEM Daily Bulletin
Message-ID: <200909071601.n87G14c0013125@despam-10.iastate.edu>


Iowa Environmental Mesonet Daily Bulletin for 07 September 2009

> News

    No news is good news

> Daily Feature

    No feature posted

> NWS Watch/Warning Summary for 06 Sep 2009

             Summary +_________ By WFO ____________+  Watches 
Type         US   IA | ARX   DVN   DMX   OAX   FSD |  US 
Tornado       1    0 |   0     0     0     0     0 |   0
Svr Tstorm   22    0 |   0     0     0     0     0 |   0
Fl Flood     19    0 |   0     0     0     0     0 | N/A

ARX = LaCrosse, WI  DVN = Davenport, IA    DMX = Des Moines, IA 
OAX = Omaha, NE     FSD = Sioux Falls, SD

> IEM Cow Report
SVR+TOR Warnings Issued: 23 Verified: 5  [21.7 %]
Reduction of Size Versus County Based     [71.3 %]
Average Perimeter Ratio                   [26.5 %]
Percentage of Warned Area Verified (15km) [9.2 %]
Average Storm Based Warning Size          [1719 sq km]
Probability of Detection(higher is better)[0.78]
False Alarm Ratio (lower is better)       [0.78]
Critical Success Index (higher is better) [0.20]

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From akrherz at iastate.edu  Tue Sep  8 11:32:20 2009
From: akrherz at iastate.edu (daryl herzmann)
Date: Tue, 8 Sep 2009 11:32:20 -0500
Subject: IEM Daily Bulletin
Message-ID: <200909081632.n88GWKe2011142@despam-10.iastate.edu>


Iowa Environmental Mesonet Daily Bulletin for 08 September 2009

> News

    No news is good news

> Daily Feature

    No feature posted

> NWS Watch/Warning Summary for 07 Sep 2009

             Summary +_________ By WFO ____________+  Watches 
Type         US   IA | ARX   DVN   DMX   OAX   FSD |  US 
Tornado       1    0 |   0     0     0     0     0 |   0
Svr Tstorm   25    0 |   0     0     0     0     0 |   0
Fl Flood      2    0 |   0     0     0     0     0 | N/A

ARX = LaCrosse, WI  DVN = Davenport, IA    DMX = Des Moines, IA 
OAX = Omaha, NE     FSD = Sioux Falls, SD

> IEM Cow Report
SVR+TOR Warnings Issued: 26 Verified: 7  [26.9 %]
Reduction of Size Versus County Based     [70.8 %]
Average Perimeter Ratio                   [30.9 %]
Percentage of Warned Area Verified (15km) [15.9 %]
Average Storm Based Warning Size          [1003 sq km]
Probability of Detection(higher is better)[0.92]
False Alarm Ratio (lower is better)       [0.73]
Critical Success Index (higher is better) [0.26]

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From akrherz at iastate.edu  Wed Sep  9 11:01:05 2009
From: akrherz at iastate.edu (daryl herzmann)
Date: Wed, 9 Sep 2009 11:01:05 -0500
Subject: IEM Daily Bulletin
Message-ID: <200909091601.n89G15Is016493@despam-11.iastate.edu>


Iowa Environmental Mesonet Daily Bulletin for 09 September 2009

> News

 +----------------------------------------------
 | Title : August AWOS data uploaded
 | Date  : 08 Sep 01:01 PM
 | Author: Daryl Herzmann
 | URL   : http://mesonet.agron.iastate.edu/request/awos/1min.php
 +----------------------------------------------

<p>The one minute interval Iowa AWOS data for August has been uploaded
to the IEM.  This information is kindly provided to us monthly by the
Iowa Department of Transportation.

> Daily Feature

 +----------------------------------------------
http://mesonet.agron.iastate.edu/onsite/features/cat.php?day=2009-09-08
 | Title : Only the far western counties
 | Date  : 08 Sep 06:06 AM
 | Votes : Good: 24   Bad: 4
 +----------------------------------------------

Only the far western counties have seen rain so far this month with Sioux City just over 3 inches.  The small blue blothes over the rest of the state are false returns.  Our next chance of rain arrives on Wednesday thanks to a front which is expected to spark some severe weather today in the Dakotas.

> NWS Watch/Warning Summary for 08 Sep 2009

             Summary +_________ By WFO ____________+  Watches 
Type         US   IA | ARX   DVN   DMX   OAX   FSD |  US 
Tornado       1    0 |   0     0     0     0     0 |   0
Svr Tstorm   76    0 |   0     0     0     0     1 |   1
Fl Flood     14    0 |   0     0     0     0     0 | N/A

ARX = LaCrosse, WI  DVN = Davenport, IA    DMX = Des Moines, IA 
OAX = Omaha, NE     FSD = Sioux Falls, SD

> IEM Cow Report
SVR+TOR Warnings Issued: 77 Verified: 28  [36.4 %]
Reduction of Size Versus County Based     [75.0 %]
Average Perimeter Ratio                   [26.8 %]
Percentage of Warned Area Verified (15km) [13.6 %]
Average Storm Based Warning Size          [1470 sq km]
Probability of Detection(higher is better)[0.78]
False Alarm Ratio (lower is better)       [0.64]
Critical Success Index (higher is better) [0.33]

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From akrherz at iastate.edu  Thu Sep 10 11:02:02 2009
From: akrherz at iastate.edu (daryl herzmann)
Date: Thu, 10 Sep 2009 11:02:02 -0500
Subject: IEM Daily Bulletin
Message-ID: <200909101602.n8AG22Ul016697@despam-10.iastate.edu>


Iowa Environmental Mesonet Daily Bulletin for 10 September 2009

> News

 +----------------------------------------------
 | Title : Dubuque Climate Data
 | Date  : 10 Sep 09:20 AM
 | Author: Daryl Herzmann
 | URL   : http://mesonet.agron.iastate.edu/climodat/
 +----------------------------------------------

<p>I have spliced together some data to bring Dubuque's climate record
back to the 1890s, previously it went back to the standard 1951. 
Currently, the IEM website does a very poor job explaining how these
records are assembled and how various neighboring sites are used to
splice together long term records.  Anyway, I hope to improve on that
soon with some new code I am writing to support it.

<p>The climodat reports have been updated with this new information as
well.


 +----------------------------------------------
 | Title : August ASOS data uploaded
 | Date  : 09 Sep 11:34 AM
 | Author: Daryl Herzmann
 | URL   : http://mesonet.agron.iastate.edu/request/asos/1min.phtml
 +----------------------------------------------

<p>The one minute interval Iowa ASOS data for August has been uploaded
to the IEM data coffers.  Unfortunately, the data I was really hoping
to see for the August 3rd heat burst in Cedar Rapids is strangely
missing.  Will have to dig some more to see if my processing scripts
are squeezing as much data as I can get from the raw information.

> Daily Feature

 +----------------------------------------------
http://mesonet.agron.iastate.edu/onsite/features/cat.php?day=2009-09-09
 | Title : Lack of 80+
 | Date  : 09 Sep 06:01 AM
 | Votes : Good: 28   Bad: 5
 +----------------------------------------------

Just about any way you slice it, the summer of 2009 has been exceptionally cool.  The featured graphic tallies the number of days between 1 May and 9 Sep that had a high temperature below 80 degrees.  With unofficial data, the total for 2009 dwarfs the next highest value and nearly doubles the average value.  The next two highest years and lowest two years are shown for comparison.  Cedar Rapids has a chance to hit 80 today!

> NWS Watch/Warning Summary for 09 Sep 2009

             Summary +_________ By WFO ____________+  Watches 
Type         US   IA | ARX   DVN   DMX   OAX   FSD |  US 
Tornado       0    0 |   0     0     0     0     0 |   0
Svr Tstorm   53    0 |   0     0     0     0     0 |   0
Fl Flood     18    0 |   0     0     0     0     0 | N/A

ARX = LaCrosse, WI  DVN = Davenport, IA    DMX = Des Moines, IA 
OAX = Omaha, NE     FSD = Sioux Falls, SD

> IEM Cow Report
SVR+TOR Warnings Issued: 53 Verified: 25  [47.2 %]
Reduction of Size Versus County Based     [72.6 %]
Average Perimeter Ratio                   [32.2 %]
Percentage of Warned Area Verified (15km) [27.0 %]
Average Storm Based Warning Size          [829 sq km]
Probability of Detection(higher is better)[0.90]
False Alarm Ratio (lower is better)       [0.53]
Critical Success Index (higher is better) [0.45]

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From akrherz at iastate.edu  Fri Sep 11 11:01:04 2009
From: akrherz at iastate.edu (daryl herzmann)
Date: Fri, 11 Sep 2009 11:01:04 -0500
Subject: IEM Daily Bulletin
Message-ID: <200909111601.n8BG14wR016575@despam-10.iastate.edu>


Iowa Environmental Mesonet Daily Bulletin for 11 September 2009

> News

 +----------------------------------------------
 | Title : Twitter iembots are back
 | Date  : 10 Sep 04:04 PM
 | Author: Daryl Herzmann
 | URL   : http://mesonet.agron.iastate.edu/projects/iembot/
 +----------------------------------------------

<p>Back in mid August, many of the twitter accounts IEMBot uses to
make noise were suspended due to suspected abuse.  Twitter finally got
back to me this afternoon noting that the suspension was in error and
all of the iembot twitter accounts are working again, whew.

<p>Here is a link to the Twitter accounts for Iowa NWS offices:
<ul>
 <li><a href="http://twitter.com/iembot_fsd">Sioux Falls</a></li>
 <li><a href="http://twitter.com/iembot_arx">LaCrosse</a></li>
 <li><a href="http://twitter.com/iembot_dvn">Davenport</a></li>
 <li><a href="http://twitter.com/iembot_dmx">Des Moines</a></li>
 <li><a href="http://twitter.com/iembot_oax">Omaha</a></li>
</ul>

<p>Hopefully, this won't happen again!

> Daily Feature

 +----------------------------------------------
http://mesonet.agron.iastate.edu/onsite/features/cat.php?day=2009-09-10
 | Title : Raining around us
 | Date  : 10 Sep 06:07 AM
 | Votes : Good: 19   Bad: 4
 +----------------------------------------------

The featured image is of maximum NEXRAD reflectivity for yesterday showing how the areas of rainfall avoided Iowa yesterday.  Very heavy rainfall was observed in parts of Kansas with flooding in the southeastern corner of the state. The next foreasted chance of rain arrives this weekend for Iowa.

> NWS Watch/Warning Summary for 10 Sep 2009

             Summary +_________ By WFO ____________+  Watches 
Type         US   IA | ARX   DVN   DMX   OAX   FSD |  US 
Tornado       0    0 |   0     0     0     0     0 |   0
Svr Tstorm   21    0 |   0     0     0     0     0 |   1
Fl Flood     11    0 |   0     0     0     0     0 | N/A

ARX = LaCrosse, WI  DVN = Davenport, IA    DMX = Des Moines, IA 
OAX = Omaha, NE     FSD = Sioux Falls, SD

> IEM Cow Report
SVR+TOR Warnings Issued: 17 Verified: 5  [29.4 %]
Reduction of Size Versus County Based     [87.7 %]
Average Perimeter Ratio                   [17.2 %]
Percentage of Warned Area Verified (15km) [13.5 %]
Average Storm Based Warning Size          [1181 sq km]
Probability of Detection(higher is better)[0.75]
False Alarm Ratio (lower is better)       [0.71]
Critical Success Index (higher is better) [0.27]

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From akrherz at iastate.edu  Sat Sep 12 11:01:03 2009
From: akrherz at iastate.edu (daryl herzmann)
Date: Sat, 12 Sep 2009 11:01:03 -0500
Subject: IEM Daily Bulletin
Message-ID: <200909121601.n8CG13ax021843@despam-10.iastate.edu>


Iowa Environmental Mesonet Daily Bulletin for 12 September 2009

> News

    No news is good news

> Daily Feature

 +----------------------------------------------
http://mesonet.agron.iastate.edu/onsite/features/cat.php?day=2009-09-11
 | Title : 9.11
 | Date  : 11 Sep 05:58 AM
 | Votes : Good: 2   Bad: 4
 +----------------------------------------------

While it is now 8 years away, it is still very close to our hearts.

> NWS Watch/Warning Summary for 11 Sep 2009

             Summary +_________ By WFO ____________+  Watches 
Type         US   IA | ARX   DVN   DMX   OAX   FSD |  US 
Tornado       1    0 |   0     0     0     0     0 |   1
Svr Tstorm   16    0 |   0     0     0     0     0 |   0
Fl Flood     22    0 |   0     0     0     0     1 | N/A

ARX = LaCrosse, WI  DVN = Davenport, IA    DMX = Des Moines, IA 
OAX = Omaha, NE     FSD = Sioux Falls, SD

> IEM Cow Report
SVR+TOR Warnings Issued: 17 Verified: 4  [23.5 %]
Reduction of Size Versus County Based     [80.9 %]
Average Perimeter Ratio                   [16.1 %]
Percentage of Warned Area Verified (15km) [9.0 %]
Average Storm Based Warning Size          [1418 sq km]
Probability of Detection(higher is better)[0.60]
False Alarm Ratio (lower is better)       [0.76]
Critical Success Index (higher is better) [0.20]

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From akrherz at iastate.edu  Sun Sep 13 11:01:03 2009
From: akrherz at iastate.edu (daryl herzmann)
Date: Sun, 13 Sep 2009 11:01:03 -0500
Subject: IEM Daily Bulletin
Message-ID: <200909131601.n8DG13EO000759@despam-10.iastate.edu>


Iowa Environmental Mesonet Daily Bulletin for 13 September 2009

> News

 +----------------------------------------------
 | Title : New Webcam: Fort Dodge
 | Date  : 12 Sep 05:10 PM
 | Author: Daryl Herzmann
 | URL   : http://mesonet.agron.iastate.edu/current/webcam.php
 +----------------------------------------------

<p>Another webcamera has been added to the KCCI-TV SchoolNet8 network.
 This camera is located at the <a href="http://www.trmc.org">Trinity
Regional Medical Center</a> in Fort Dodge with internet service kindly
donated by <a href="http://www.frontier.com">Frontier Communications</a>.

> Daily Feature

 +----------------------------------------------
http://mesonet.agron.iastate.edu/onsite/features/cat.php?day=2009-09-12
 | Title : Persistent Temperatures
 | Date  : 12 Sep 07:38 AM
 | Votes : Good: 5   Bad: 9
 +----------------------------------------------

The past week or so has seen high temperatures not vary much for Ames with the range being a mere 3 degrees (78-81).  The featured chart looks at the minimum 7 day temperature range for all days of the year. In general, the lowest values are in the summer time when strong temperature fronts are not common. The spikes during the spring and fall months are when we often experience air mass changes via strong fronts.

> NWS Watch/Warning Summary for 12 Sep 2009

             Summary +_________ By WFO ____________+  Watches 
Type         US   IA | ARX   DVN   DMX   OAX   FSD |  US 
Tornado       1    0 |   0     0     0     0     0 |   0
Svr Tstorm    6    0 |   0     0     0     0     0 |   0
Fl Flood     12    0 |   0     0     0     0     0 | N/A

ARX = LaCrosse, WI  DVN = Davenport, IA    DMX = Des Moines, IA 
OAX = Omaha, NE     FSD = Sioux Falls, SD

> IEM Cow Report
SVR+TOR Warnings Issued: 7 Verified: 0  [0.0 %]
Reduction of Size Versus County Based     [88.0 %]
Average Perimeter Ratio                   [22.0 %]
Percentage of Warned Area Verified (15km) [0.0 %]
Average Storm Based Warning Size          [1016 sq km]
Probability of Detection(higher is better)[0.00]
False Alarm Ratio (lower is better)       [1.00]
Critical Success Index (higher is better) [0.00]

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From akrherz at iastate.edu  Mon Sep 14 11:01:07 2009
From: akrherz at iastate.edu (daryl herzmann)
Date: Mon, 14 Sep 2009 11:01:07 -0500
Subject: IEM Daily Bulletin
Message-ID: <200909141601.n8EG17jO018396@despam-11.iastate.edu>


Iowa Environmental Mesonet Daily Bulletin for 14 September 2009

> News

    No news is good news

> Daily Feature

    No feature posted

> NWS Watch/Warning Summary for 13 Sep 2009

             Summary +_________ By WFO ____________+  Watches 
Type         US   IA | ARX   DVN   DMX   OAX   FSD |  US 
Tornado       1    0 |   0     0     0     0     0 |   0
Svr Tstorm   16    0 |   0     0     0     0     0 |   1
Fl Flood     13    0 |   0     0     0     0     0 | N/A

ARX = LaCrosse, WI  DVN = Davenport, IA    DMX = Des Moines, IA 
OAX = Omaha, NE     FSD = Sioux Falls, SD

> IEM Cow Report
SVR+TOR Warnings Issued: 15 Verified: 5  [33.3 %]
Reduction of Size Versus County Based     [85.9 %]
Average Perimeter Ratio                   [20.5 %]
Percentage of Warned Area Verified (15km) [15.8 %]
Average Storm Based Warning Size          [1469 sq km]
Probability of Detection(higher is better)[0.64]
False Alarm Ratio (lower is better)       [0.67]
Critical Success Index (higher is better) [0.28]

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From akrherz at iastate.edu  Tue Sep 15 11:02:01 2009
From: akrherz at iastate.edu (daryl herzmann)
Date: Tue, 15 Sep 2009 11:02:01 -0500
Subject: IEM Daily Bulletin
Message-ID: <200909151602.n8FG21fR031652@despam-10.iastate.edu>


Iowa Environmental Mesonet Daily Bulletin for 15 September 2009

> News

 +----------------------------------------------
 | Title : DCP Archive Fix
 | Date  : 14 Sep 10:19 PM
 | Author: Daryl Herzmann
 | URL   : http://mesonet.agron.iastate.edu/DCP/
 +----------------------------------------------

<p>A bug was found with a portion of the DCP network archive the IEM
maintains.  For data between 8 Jan and 16 Oct 2008, the timestamp was
incorrectly stored as local time when it was actually GMT.  This error
has been corrected and I apologize for the issue.

> Daily Feature

 +----------------------------------------------
http://mesonet.agron.iastate.edu/onsite/features/cat.php?day=2009-09-14
 | Title : It has been a while
 | Date  : 14 Sep 05:48 AM
 | Votes : Good: 20   Bad: 5
 +----------------------------------------------

The featured map is an estimate of the number of days since the last daily observation of rainfall greater than a quarter inch.  For most of the state, it has been a while since considerable rainfall has occured.  The forecast does not have much optimism for breaking the current pattern we are in and highs will be around 80, which is above average for this time of year!

> NWS Watch/Warning Summary for 14 Sep 2009

             Summary +_________ By WFO ____________+  Watches 
Type         US   IA | ARX   DVN   DMX   OAX   FSD |  US 
Tornado       0    0 |   0     0     0     0     0 |   0
Svr Tstorm   38    0 |   0     0     0     0     0 |   1
Fl Flood     17    0 |   0     0     0     0     0 | N/A

ARX = LaCrosse, WI  DVN = Davenport, IA    DMX = Des Moines, IA 
OAX = Omaha, NE     FSD = Sioux Falls, SD

> IEM Cow Report
SVR+TOR Warnings Issued: 38 Verified: 7  [18.4 %]
Reduction of Size Versus County Based     [84.6 %]
Average Perimeter Ratio                   [9.4 %]
Percentage of Warned Area Verified (15km) [4.1 %]
Average Storm Based Warning Size          [2843 sq km]
Probability of Detection(higher is better)[0.40]
False Alarm Ratio (lower is better)       [0.82]
Critical Success Index (higher is better) [0.14]

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From akrherz at iastate.edu  Wed Sep 16 11:01:03 2009
From: akrherz at iastate.edu (daryl herzmann)
Date: Wed, 16 Sep 2009 11:01:03 -0500
Subject: IEM Daily Bulletin
Message-ID: <200909161601.n8GG13dW030446@despam-11.iastate.edu>


Iowa Environmental Mesonet Daily Bulletin for 16 September 2009

> News

    No news is good news

> Daily Feature

 +----------------------------------------------
http://mesonet.agron.iastate.edu/onsite/features/cat.php?day=2009-09-15
 | Title : Dry first, ??? second half
 | Date  : 15 Sep 06:02 AM
 | Votes : Good: 19   Bad: 2
 +----------------------------------------------

For places like Ames, the first 15 days of September has seen little rainfall.  Is this a omen for a dry second half as well?  The featured graph plots the first half of September rainfall against the second half for Ames.  This plot does not show a clear correlation, so there is hope for a wet second half.  The actual forecast has little hope for the immediate coming days with no rainfall expected.

> NWS Watch/Warning Summary for 15 Sep 2009

             Summary +_________ By WFO ____________+  Watches 
Type         US   IA | ARX   DVN   DMX   OAX   FSD |  US 
Tornado       0    0 |   0     0     0     0     0 |   0
Svr Tstorm    8    0 |   0     0     0     0     0 |   0
Fl Flood     18    0 |   0     0     0     0     0 | N/A

ARX = LaCrosse, WI  DVN = Davenport, IA    DMX = Des Moines, IA 
OAX = Omaha, NE     FSD = Sioux Falls, SD

> IEM Cow Report
SVR+TOR Warnings Issued: 8 Verified: 3  [37.5 %]
Reduction of Size Versus County Based     [88.3 %]
Average Perimeter Ratio                   [17.6 %]
Percentage of Warned Area Verified (15km) [17.5 %]
Average Storm Based Warning Size          [1002 sq km]
Probability of Detection(higher is better)[0.67]
False Alarm Ratio (lower is better)       [0.63]
Critical Success Index (higher is better) [0.32]

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From akrherz at iastate.edu  Thu Sep 17 11:01:04 2009
From: akrherz at iastate.edu (daryl herzmann)
Date: Thu, 17 Sep 2009 11:01:04 -0500
Subject: IEM Daily Bulletin
Message-ID: <200909171601.n8HG14d1024045@despam-11.iastate.edu>


Iowa Environmental Mesonet Daily Bulletin for 17 September 2009

> News

    No news is good news

> Daily Feature

 +----------------------------------------------
http://mesonet.agron.iastate.edu/onsite/features/cat.php?day=2009-09-16
 | Title : Lack of westerlies
 | Date  : 16 Sep 06:05 AM
 | Votes : Good: 24   Bad: 5
 +----------------------------------------------

The featured image is a wind rose for Ames for this month showing the complete lack of westerly winds and the overall lack of strong winds.  Winds from the east and southeast are typically dry, so that helps to quell rainfall.  This pattern looks to continue into the weekend.

> NWS Watch/Warning Summary for 16 Sep 2009

             Summary +_________ By WFO ____________+  Watches 
Type         US   IA | ARX   DVN   DMX   OAX   FSD |  US 
Tornado       2    0 |   0     0     0     0     0 |   0
Svr Tstorm   22    0 |   0     0     0     0     0 |   0
Fl Flood     42    0 |   0     0     0     0     0 | N/A

ARX = LaCrosse, WI  DVN = Davenport, IA    DMX = Des Moines, IA 
OAX = Omaha, NE     FSD = Sioux Falls, SD

> IEM Cow Report
SVR+TOR Warnings Issued: 24 Verified: 9  [37.5 %]
Reduction of Size Versus County Based     [91.5 %]
Average Perimeter Ratio                   [25.3 %]
Percentage of Warned Area Verified (15km) [22.5 %]
Average Storm Based Warning Size          [686 sq km]
Probability of Detection(higher is better)[0.70]
False Alarm Ratio (lower is better)       [0.63]
Critical Success Index (higher is better) [0.32]

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From akrherz at iastate.edu  Fri Sep 18 11:01:03 2009
From: akrherz at iastate.edu (daryl herzmann)
Date: Fri, 18 Sep 2009 11:01:03 -0500
Subject: IEM Daily Bulletin
Message-ID: <200909181601.n8IG13uK019871@despam-11.iastate.edu>


Iowa Environmental Mesonet Daily Bulletin for 18 September 2009

> News

 +----------------------------------------------
 | Title : April COOP data uploaded
 | Date  : 18 Sep 09:22 AM
 | Author: Daryl Herzmann
 | URL   : http://mesonet.agron.iastate.edu/climodat/
 +----------------------------------------------

<p>The quality controlled Iowa COOP data for April 2009 has been
uploaded to the IEM.  The climodat reports have been regenerated as
well.  Harry Hillaker, our state climatologist, passes along these
notes about the month:</p>

<blockquote>
The Iowa statewide average temperature for the month was 46.7 degrees
or 1.8
degrees below normal.   Precipitation averaged 3.69 inches or 0.36 inches
more than normal.   Snowfall averaged 1.5 inches or 0.4 inches less than
normal.   This ranks as the 37th coolest and 34th wettest April among 137
years of state records.   Snowfall ranked 43rd highest among 122 years of
April records.   The 2008-2009 snowfall season brought a statewide average
of 36.3 inches of snow or 3.9 inches more than normal to rank as the 33rd
greatest seasonal total among 122 years of records.   The fourth snowiest
September though January period of record was followed by the 12th lowest
February through May total; thus this past winter had a split personality
for snowfall.

<br /><br />One interesting note in April was that Guthrie Center
reported 6.79 inches
of rain for the 24-hour period ending 8 a.m. on April 27.   This was a new
24-hour record for the month of April for any location in Iowa.
</blockquote>

<p>IEM computed number of new daily records set for the month:
<br />
<pre>
                 _____2009____________________ 2008 ________
                 APR  MAR  FEB  JAN  DEC  NOV  OCT  SEP  AUG  
Maximum High:     46   84   75    0   24  159    2    0    5
Minimum High:     24   32    0   56   66   28    0  165    2
Maximum Low:       1   50   87    0   21  164   29   43    3
Minimum Low:       1    4    0  132    2   12    4   11    3
Maximum Precip:   76  122   39   51  102   55   58   41   11
</pre>

> Daily Feature

 +----------------------------------------------
http://mesonet.agron.iastate.edu/onsite/features/cat.php?day=2009-09-17
 | Title : Fog and more fog
 | Date  : 17 Sep 06:06 AM
 | Votes : Good: 21   Bad: 5
 +----------------------------------------------

The featured time series is of relative humidity and visibility from the Ames Airport sensor.  Just about every morning this month has seen fog with it burning off by mid morning.  The plot nicely shows how the relative humidity and visibility oscillate each day.  More of the same is in the forecast!

> NWS Watch/Warning Summary for 17 Sep 2009

             Summary +_________ By WFO ____________+  Watches 
Type         US   IA | ARX   DVN   DMX   OAX   FSD |  US 
Tornado       0    0 |   0     0     0     0     0 |   0
Svr Tstorm    9    0 |   0     0     0     0     0 |   0
Fl Flood     42    0 |   0     0     0     0     0 | N/A

ARX = LaCrosse, WI  DVN = Davenport, IA    DMX = Des Moines, IA 
OAX = Omaha, NE     FSD = Sioux Falls, SD

> IEM Cow Report
SVR+TOR Warnings Issued: 9 Verified: 0  [0.0 %]
Reduction of Size Versus County Based     [90.6 %]
Average Perimeter Ratio                   [16.3 %]
Percentage of Warned Area Verified (15km) [0.0 %]
Average Storm Based Warning Size          [842 sq km]
Probability of Detection(higher is better)[0.00]
False Alarm Ratio (lower is better)       [1.00]
Critical Success Index (higher is better) [0.00]

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From akrherz at iastate.edu  Sat Sep 19 11:01:02 2009
From: akrherz at iastate.edu (daryl herzmann)
Date: Sat, 19 Sep 2009 11:01:02 -0500
Subject: IEM Daily Bulletin
Message-ID: <200909191601.n8JG12aw010882@despam-10.iastate.edu>


Iowa Environmental Mesonet Daily Bulletin for 19 September 2009

> News

 +----------------------------------------------
 | Title : Stage4 Precip Archive
 | Date  : 18 Sep 11:27 AM
 | Author: Daryl Herzmann
 | URL   : http://mesonet.agron.iastate.edu/archive/schema.php
 +----------------------------------------------

<p>The IEM maintains an archive of the <a
href="http://www.emc.ncep.noaa.gov/mmb/ylin/pcpanl/stage4/">NCEP
Stage4</a> precipitation product back to 1997.  I have moved this
archive to a web accessible location for others to use or script
against if so desired.  Some notes on this dataset:
<ul>
 <li>The archive prior to 2001 has some holes in it.</li>
 <li>A script runs every hour to update this archive with recent files
from NCEP.  As NCEP gets better data in, they update their files as
well.  This means that if you write a script to use the data in near
realtime, you may wish to backfill yesterday's data at the same time
to get any changes made upstream (this is what the IEM does).</li>
 <li>The files are in Grib format and not compressed like what you can
get from NCEP.</li>
 <li>Only recently, the archive contains the 6 and 24 hour summary
files.  Note that these files are produced independently from the
hourly data.</li>
</ul>

<p>As always, let me know of any issues you have or ideas.

> Daily Feature

 +----------------------------------------------
http://mesonet.agron.iastate.edu/onsite/features/cat.php?day=2009-09-18
 | Title : Good to be above
 | Date  : 18 Sep 06:02 AM
 | Votes : Good: 19   Bad: 8
 +----------------------------------------------

This month has seen more days above average for high temperature than July and August combined for Ames and the month is only half over!  Our recent stretch of highs around 80 look to be ending this weekend with cooler air expected for next week.

> NWS Watch/Warning Summary for 18 Sep 2009

             Summary +_________ By WFO ____________+  Watches 
Type         US   IA | ARX   DVN   DMX   OAX   FSD |  US 
Tornado       1    0 |   0     0     0     0     0 |   0
Svr Tstorm    0    0 |   0     0     0     0     0 |   0
Fl Flood     33    0 |   0     0     0     0     0 | N/A

ARX = LaCrosse, WI  DVN = Davenport, IA    DMX = Des Moines, IA 
OAX = Omaha, NE     FSD = Sioux Falls, SD

> IEM Cow Report
SVR+TOR Warnings Issued: 1 Verified: 0  [0.0 %]
Reduction of Size Versus County Based     [51.7 %]
Average Perimeter Ratio                   [15.0 %]
Percentage of Warned Area Verified (15km) [0.0 %]
Average Storm Based Warning Size          [829 sq km]
Probability of Detection(higher is better)[0.00]
False Alarm Ratio (lower is better)       [1.00]
Critical Success Index (higher is better) [0.00]

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From akrherz at iastate.edu  Sun Sep 20 11:01:03 2009
From: akrherz at iastate.edu (daryl herzmann)
Date: Sun, 20 Sep 2009 11:01:03 -0500
Subject: IEM Daily Bulletin
Message-ID: <200909201601.n8KG13JY005628@despam-11.iastate.edu>


Iowa Environmental Mesonet Daily Bulletin for 20 September 2009

> News

    No news is good news

> Daily Feature

    No feature posted

> NWS Watch/Warning Summary for 19 Sep 2009

             Summary +_________ By WFO ____________+  Watches 
Type         US   IA | ARX   DVN   DMX   OAX   FSD |  US 
Tornado       0    0 |   0     0     0     0     0 |   0
Svr Tstorm    8    0 |   0     0     0     0     0 |   0
Fl Flood     24    0 |   0     0     0     0     0 | N/A

ARX = LaCrosse, WI  DVN = Davenport, IA    DMX = Des Moines, IA 
OAX = Omaha, NE     FSD = Sioux Falls, SD

> IEM Cow Report
SVR+TOR Warnings Issued: 8 Verified: 0  [0.0 %]
Reduction of Size Versus County Based     [91.5 %]
Average Perimeter Ratio                   [13.9 %]
Percentage of Warned Area Verified (15km) [0.0 %]
Average Storm Based Warning Size          [1068 sq km]
Probability of Detection(higher is better)[0.00]
False Alarm Ratio (lower is better)       [1.00]
Critical Success Index (higher is better) [0.00]

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From akrherz at iastate.edu  Mon Sep 21 11:02:00 2009
From: akrherz at iastate.edu (daryl herzmann)
Date: Mon, 21 Sep 2009 11:02:00 -0500
Subject: IEM Daily Bulletin
Message-ID: <200909211602.n8LG20VL019747@despam-10.iastate.edu>


Iowa Environmental Mesonet Daily Bulletin for 21 September 2009

> News

    No news is good news

> Daily Feature

    No feature posted

> NWS Watch/Warning Summary for 20 Sep 2009

             Summary +_________ By WFO ____________+  Watches 
Type         US   IA | ARX   DVN   DMX   OAX   FSD |  US 
Tornado       1    0 |   0     0     0     0     0 |   0
Svr Tstorm    8    0 |   0     0     0     0     0 |   0
Fl Flood     50    0 |   0     0     0     0     0 | N/A

ARX = LaCrosse, WI  DVN = Davenport, IA    DMX = Des Moines, IA 
OAX = Omaha, NE     FSD = Sioux Falls, SD

> IEM Cow Report
SVR+TOR Warnings Issued: 9 Verified: 2  [22.2 %]
Reduction of Size Versus County Based     [78.1 %]
Average Perimeter Ratio                   [19.4 %]
Percentage of Warned Area Verified (15km) [6.7 %]
Average Storm Based Warning Size          [1641 sq km]
Probability of Detection(higher is better)[0.43]
False Alarm Ratio (lower is better)       [0.78]
Critical Success Index (higher is better) [0.17]

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From akrherz at iastate.edu  Tue Sep 22 11:02:42 2009
From: akrherz at iastate.edu (daryl herzmann)
Date: Tue, 22 Sep 2009 11:02:42 -0500
Subject: IEM Daily Bulletin
Message-ID: <200909221602.n8MG2gpl007545@despam-10.iastate.edu>


Iowa Environmental Mesonet Daily Bulletin for 22 September 2009

> News

    No news is good news

> Daily Feature

 +----------------------------------------------
http://mesonet.agron.iastate.edu/onsite/features/cat.php?day=2009-09-21
 | Title : Best chance this month
 | Date  : 21 Sep 06:02 AM
 | Votes : Good: 23   Bad: 3
 +----------------------------------------------

The featured chart shows the GFS Model Output Statistics (MOS) value for probability of precipitation for Ames this month.  Each bar represents a different model run's 36 hour forecast.  The chart shows how small our rainfall chances have been this month, but Monday and Tuesday have the largest values seen this September. In fact, rain showers are currently in Western Iowa, so getting rain today looks to be a good bet.

> NWS Watch/Warning Summary for 21 Sep 2009

             Summary +_________ By WFO ____________+  Watches 
Type         US   IA | ARX   DVN   DMX   OAX   FSD |  US 
Tornado      11    0 |   0     0     0     0     0 |   0
Svr Tstorm  121    0 |   0     0     0     1     1 |   2
Fl Flood     69    0 |   0     0     0     0     0 | N/A

ARX = LaCrosse, WI  DVN = Davenport, IA    DMX = Des Moines, IA 
OAX = Omaha, NE     FSD = Sioux Falls, SD

> IEM Cow Report
SVR+TOR Warnings Issued: 131 Verified: 32  [24.4 %]
Reduction of Size Versus County Based     [63.7 %]
Average Perimeter Ratio                   [40.1 %]
Percentage of Warned Area Verified (15km) [8.6 %]
Average Storm Based Warning Size          [2025 sq km]
Probability of Detection(higher is better)[0.86]
False Alarm Ratio (lower is better)       [0.76]
Critical Success Index (higher is better) [0.24]

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From akrherz at iastate.edu  Wed Sep 23 11:01:03 2009
From: akrherz at iastate.edu (daryl herzmann)
Date: Wed, 23 Sep 2009 11:01:03 -0500
Subject: IEM Daily Bulletin
Message-ID: <200909231601.n8NG13ZX019794@despam-11.iastate.edu>


Iowa Environmental Mesonet Daily Bulletin for 23 September 2009

> News

    No news is good news

> Daily Feature

 +----------------------------------------------
http://mesonet.agron.iastate.edu/onsite/features/cat.php?day=2009-09-22
 | Title : Finally, some rain
 | Date  : 22 Sep 06:06 AM
 | Votes : Good: 25   Bad: 9
 +----------------------------------------------

A slow moving cold front helped to spark some showers and thunderstorms on Monday bringing the first widespread rainfall to the state this month.  The featured estimate for Monday indicates a few locations in the 1-3 inch range.  Showers will be exiting the state today with mostly dry weather expected till this weekend.

> NWS Watch/Warning Summary for 22 Sep 2009

             Summary +_________ By WFO ____________+  Watches 
Type         US   IA | ARX   DVN   DMX   OAX   FSD |  US 
Tornado       1    0 |   0     0     0     0     0 |   0
Svr Tstorm    3    0 |   0     0     0     0     0 |   0
Fl Flood     19    0 |   0     0     0     0     0 | N/A

ARX = LaCrosse, WI  DVN = Davenport, IA    DMX = Des Moines, IA 
OAX = Omaha, NE     FSD = Sioux Falls, SD

> IEM Cow Report
SVR+TOR Warnings Issued: 4 Verified: 1  [25.0 %]
Reduction of Size Versus County Based     [61.3 %]
Average Perimeter Ratio                   [32.6 %]
Percentage of Warned Area Verified (15km) [14.1 %]
Average Storm Based Warning Size          [904 sq km]
Probability of Detection(higher is better)[0.50]
False Alarm Ratio (lower is better)       [0.75]
Critical Success Index (higher is better) [0.20]

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From akrherz at iastate.edu  Thu Sep 24 11:01:07 2009
From: akrherz at iastate.edu (daryl herzmann)
Date: Thu, 24 Sep 2009 11:01:07 -0500
Subject: IEM Daily Bulletin
Message-ID: <200909241601.n8OG17O7005648@despam-11.iastate.edu>


Iowa Environmental Mesonet Daily Bulletin for 24 September 2009

> News

 +----------------------------------------------
 | Title : IEM Seminar
 | Date  : 23 Sep 12:08 PM
 | Author: Daryl Herzmann
 | URL   : http://mesonet.agron.iastate.edu/present/090922_isu/
 +----------------------------------------------

<p>I presented a local seminar titled 'IEM Potpourri' yesterday for
the ISU Meteorology Department Seminar Series.  The talk consisted of
some random thoughts about some ASOS data caveats, climate data
caveats, and National Weather Service Storm Based Warning
verification.  I also touched on some archives the IEM has recently
built and briefly showed some past IEM Features.

<p>The Agronomy department created a <a
href="http://www.agron.iastate.edu/news/podcasts/media/20090923_herzmann.mp4">podcast</a>
of this presentation.

<p>In my talk, I showed this YouTube video montage of the "best-of"
webcam timelapses.

<p><object width="425" height="344"><param name="movie"
value="http://www.youtube.com/v/QV1ztlsPQfQ&hl=en&fs=1&"></param><param name="allowFullScreen"
value="true"></param><param name="allowscriptaccess"
value="always"></param><embed
src="http://www.youtube.com/v/QV1ztlsPQfQ&hl=en&fs=1&"
type="application/x-shockwave-flash" allowscriptaccess="always"
allowfullscreen="true" width="425" height="344"></embed></object>

<p>Thanks to everyone that came!

> Daily Feature

 +----------------------------------------------
http://mesonet.agron.iastate.edu/onsite/features/cat.php?day=2009-09-23
 | Title : Avoided frost thus far
 | Date  : 23 Sep 06:01 AM
 | Votes : Good: 22   Bad: 3
 +----------------------------------------------

With a corn crop behind in development due to a cool summer, it is good that we have avoided a killing frost thus far.  The featured map displays the minimum observed temperature this fall with most of the state well above freezing.  The longer term model forecasts have been hinting at cooler weather to start October, which would be about normal.

> NWS Watch/Warning Summary for 23 Sep 2009

             Summary +_________ By WFO ____________+  Watches 
Type         US   IA | ARX   DVN   DMX   OAX   FSD |  US 
Tornado       0    0 |   0     0     0     0     0 |   0
Svr Tstorm    2    0 |   0     0     0     0     0 |   0
Fl Flood     18    0 |   0     0     0     0     0 | N/A

ARX = LaCrosse, WI  DVN = Davenport, IA    DMX = Des Moines, IA 
OAX = Omaha, NE     FSD = Sioux Falls, SD

> IEM Cow Report
SVR+TOR Warnings Issued: 2 Verified: 2  [100.0 %]
Reduction of Size Versus County Based     [79.8 %]
Average Perimeter Ratio                   [17.9 %]
Percentage of Warned Area Verified (15km) [62.9 %]
Average Storm Based Warning Size          [561 sq km]
Probability of Detection(higher is better)[0.67]
False Alarm Ratio (lower is better)       [0.00]
Critical Success Index (higher is better) [0.67]

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From akrherz at iastate.edu  Fri Sep 25 11:01:03 2009
From: akrherz at iastate.edu (daryl herzmann)
Date: Fri, 25 Sep 2009 11:01:03 -0500
Subject: IEM Daily Bulletin
Message-ID: <200909251601.n8PG13qI015759@despam-11.iastate.edu>


Iowa Environmental Mesonet Daily Bulletin for 25 September 2009

> News

    No news is good news

> Daily Feature

 +----------------------------------------------
http://mesonet.agron.iastate.edu/onsite/features/cat.php?day=2009-09-24
 | Title : Before the first freeze
 | Date  : 24 Sep 06:08 AM
 | Votes : Good: 25   Bad: 7
 +----------------------------------------------

The featured chart shows the frequency of low temperature thresholds for the fall period before the first freezing temperature.  For instance, on average we would expect to see around 10 days with a low temperature at or below 45 degrees before the first freeze (blue dots). The maximum and minimum values are shown as well along with the current observation this fall.  The moral of the story is that we probably should see a few more cool mornings before the first freeze with a day or two in the 30s and then finally that first fall freeze.

> NWS Watch/Warning Summary for 24 Sep 2009

             Summary +_________ By WFO ____________+  Watches 
Type         US   IA | ARX   DVN   DMX   OAX   FSD |  US 
Tornado       1    0 |   0     0     0     0     0 |   0
Svr Tstorm    0    0 |   0     0     0     0     0 |   0
Fl Flood      6    0 |   0     0     0     0     0 | N/A

ARX = LaCrosse, WI  DVN = Davenport, IA    DMX = Des Moines, IA 
OAX = Omaha, NE     FSD = Sioux Falls, SD

> IEM Cow Report
SVR+TOR Warnings Issued: 1 Verified: 0  [0.0 %]
Reduction of Size Versus County Based     [89.4 %]
Average Perimeter Ratio                   [20.8 %]
Percentage of Warned Area Verified (15km) [0.0 %]
Average Storm Based Warning Size          [708 sq km]
Probability of Detection(higher is better)[0.00]
False Alarm Ratio (lower is better)       [1.00]
Critical Success Index (higher is better) [0.00]

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From akrherz at iastate.edu  Sat Sep 26 11:01:02 2009
From: akrherz at iastate.edu (daryl herzmann)
Date: Sat, 26 Sep 2009 11:01:02 -0500
Subject: IEM Daily Bulletin
Message-ID: <200909261601.n8QG12vi020951@despam-10.iastate.edu>


Iowa Environmental Mesonet Daily Bulletin for 26 September 2009

> News

    No news is good news

> Daily Feature

 +----------------------------------------------
http://mesonet.agron.iastate.edu/onsite/features/cat.php?day=2009-09-25
 | Title : Good to see some rain
 | Date  : 25 Sep 05:58 AM
 | Votes : Good: 21   Bad: 7
 +----------------------------------------------

It is raining this fine Friday morning with some locations like Forest City (FXY) pushing totals to over 2 inches.  Unlike 2008, this year has been a bit on the dry side with the driest conditions in the far north and western part of the state.  More rain is in the forecast as an unsettled weather pattern looks to persist into next week.

> NWS Watch/Warning Summary for 25 Sep 2009

             Summary +_________ By WFO ____________+  Watches 
Type         US   IA | ARX   DVN   DMX   OAX   FSD |  US 
Tornado       0    0 |   0     0     0     0     0 |   0
Svr Tstorm    6    0 |   0     0     0     0     0 |   0
Fl Flood     14    0 |   0     0     0     0     0 | N/A

ARX = LaCrosse, WI  DVN = Davenport, IA    DMX = Des Moines, IA 
OAX = Omaha, NE     FSD = Sioux Falls, SD

> IEM Cow Report
SVR+TOR Warnings Issued: 6 Verified: 0  [0.0 %]
Reduction of Size Versus County Based     [69.2 %]
Average Perimeter Ratio                   [32.0 %]
Percentage of Warned Area Verified (15km) [0.0 %]
Average Storm Based Warning Size          [1752 sq km]
Probability of Detection(higher is better)[0.00]
False Alarm Ratio (lower is better)       [1.00]
Critical Success Index (higher is better) [0.00]

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From akrherz at iastate.edu  Sun Sep 27 11:01:03 2009
From: akrherz at iastate.edu (daryl herzmann)
Date: Sun, 27 Sep 2009 11:01:03 -0500
Subject: IEM Daily Bulletin
Message-ID: <200909271601.n8RG13tr003013@despam-10.iastate.edu>


Iowa Environmental Mesonet Daily Bulletin for 27 September 2009

> News

    No news is good news

> Daily Feature

    No feature posted

> NWS Watch/Warning Summary for 26 Sep 2009

             Summary +_________ By WFO ____________+  Watches 
Type         US   IA | ARX   DVN   DMX   OAX   FSD |  US 
Tornado       1    0 |   0     0     0     0     0 |   0
Svr Tstorm   22    0 |   0     0     0     0     0 |   1
Fl Flood     35    0 |   0     0     0     0     0 | N/A

ARX = LaCrosse, WI  DVN = Davenport, IA    DMX = Des Moines, IA 
OAX = Omaha, NE     FSD = Sioux Falls, SD

> IEM Cow Report
SVR+TOR Warnings Issued: 23 Verified: 4  [17.4 %]
Reduction of Size Versus County Based     [60.4 %]
Average Perimeter Ratio                   [45.8 %]
Percentage of Warned Area Verified (15km) [10.1 %]
Average Storm Based Warning Size          [1055 sq km]
Probability of Detection(higher is better)[0.67]
False Alarm Ratio (lower is better)       [0.83]
Critical Success Index (higher is better) [0.16]

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From akrherz at iastate.edu  Mon Sep 28 11:01:03 2009
From: akrherz at iastate.edu (daryl herzmann)
Date: Mon, 28 Sep 2009 11:01:03 -0500
Subject: IEM Daily Bulletin
Message-ID: <200909281601.n8SG136t005980@despam-10.iastate.edu>


Iowa Environmental Mesonet Daily Bulletin for 28 September 2009

> News

    No news is good news

> Daily Feature

    No feature posted

> NWS Watch/Warning Summary for 27 Sep 2009

             Summary +_________ By WFO ____________+  Watches 
Type         US   IA | ARX   DVN   DMX   OAX   FSD |  US 
Tornado       2    0 |   0     0     0     0     0 |   1
Svr Tstorm    9    0 |   1     0     0     0     0 |   2
Fl Flood      0    0 |   0     0     0     0     0 | N/A

ARX = LaCrosse, WI  DVN = Davenport, IA    DMX = Des Moines, IA 
OAX = Omaha, NE     FSD = Sioux Falls, SD

> IEM Cow Report
SVR+TOR Warnings Issued: 10 Verified: 4  [40.0 %]
Reduction of Size Versus County Based     [59.5 %]
Average Perimeter Ratio                   [47.7 %]
Percentage of Warned Area Verified (15km) [25.1 %]
Average Storm Based Warning Size          [1520 sq km]
Probability of Detection(higher is better)[0.67]
False Alarm Ratio (lower is better)       [0.60]
Critical Success Index (higher is better) [0.33]

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From akrherz at iastate.edu  Tue Sep 29 11:01:04 2009
From: akrherz at iastate.edu (daryl herzmann)
Date: Tue, 29 Sep 2009 11:01:04 -0500
Subject: IEM Daily Bulletin
Message-ID: <200909291601.n8TG14gE023127@despam-11.iastate.edu>


Iowa Environmental Mesonet Daily Bulletin for 29 September 2009

> News

    No news is good news

> Daily Feature

 +----------------------------------------------
http://mesonet.agron.iastate.edu/onsite/features/cat.php?day=2009-09-28
 | Title : Windy Sunday
 | Date  : 28 Sep 06:07 AM
 | Votes : Good: 24   Bad: 4
 +----------------------------------------------

September had been a very calm month up until Sunday when wind speeds gusted into the 30s and 40s MPH as shown by the featured map.  This wind was thanks to front that swept the state and eventually helped to fire thunderstorms in Illinois and Wisconsin.  Cold air is filtering into the state this fine Monday morning with a very chilly night in store this evening.

> NWS Watch/Warning Summary for 28 Sep 2009

             Summary +_________ By WFO ____________+  Watches 
Type         US   IA | ARX   DVN   DMX   OAX   FSD |  US 
Tornado       0    0 |   0     0     0     0     0 |   0
Svr Tstorm   55    0 |   0     0     0     0     0 |   2
Fl Flood      1    0 |   0     0     0     0     0 | N/A

ARX = LaCrosse, WI  DVN = Davenport, IA    DMX = Des Moines, IA 
OAX = Omaha, NE     FSD = Sioux Falls, SD

> IEM Cow Report
SVR+TOR Warnings Issued: 55 Verified: 25  [45.5 %]
Reduction of Size Versus County Based     [63.9 %]
Average Perimeter Ratio                   [29.0 %]
Percentage of Warned Area Verified (15km) [22.3 %]
Average Storm Based Warning Size          [1753 sq km]
Probability of Detection(higher is better)[0.91]
False Alarm Ratio (lower is better)       [0.55]
Critical Success Index (higher is better) [0.44]

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From akrherz at iastate.edu  Wed Sep 30 11:01:02 2009
From: akrherz at iastate.edu (daryl herzmann)
Date: Wed, 30 Sep 2009 11:01:02 -0500
Subject: IEM Daily Bulletin
Message-ID: <200909301601.n8UG12Nv008121@despam-11.iastate.edu>


Iowa Environmental Mesonet Daily Bulletin for 30 September 2009

> News

    No news is good news

> Daily Feature

 +----------------------------------------------
http://mesonet.agron.iastate.edu/onsite/features/cat.php?day=2009-09-29
 | Title : 20 degree swings
 | Date  : 29 Sep 06:05 AM
 | Votes : Good: 19   Bad: 6
 +----------------------------------------------

After a high temperature of 82 on Sunday, Ames only got up to 64 on Monday which is almost a 20 degree cool off in high temperature.  The featured chart looks at the monthly frequency of having a 20+ degree high temperature swing either up or down.  In general, these events are somewhat rare with primary direction being a 20+ degree downward swing.

> NWS Watch/Warning Summary for 29 Sep 2009

             Summary +_________ By WFO ____________+  Watches 
Type         US   IA | ARX   DVN   DMX   OAX   FSD |  US 
Tornado       0    0 |   0     0     0     0     0 |   0
Svr Tstorm    0    0 |   0     0     0     0     0 |   0
Fl Flood      5    0 |   0     0     0     0     0 | N/A

ARX = LaCrosse, WI  DVN = Davenport, IA    DMX = Des Moines, IA 
OAX = Omaha, NE     FSD = Sioux Falls, SD

> IEM Cow Report
No Warnings Issued

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